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A current control unit, power supply device and vehicle

A technology of current control and control module, which is applied in the electronic field, can solve problems such as the inability to effectively solve the reuse of step-by-step lithium batteries, the large consumption of manpower and material resources, and the difficulty in keeping the physical characteristics of lithium battery packs consistent, so as to improve resource utilization and improve Service life and safety, effect of re-application

Active Publication Date: 2021-09-24
SHENZHEN WINLINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method consumes a lot of manpower and material resources, and, with the increase of the service time of lithium battery packs, it is difficult to keep consistent changes in the physical characteristics of different lithium battery packs
At the same time, this approach cannot effectively solve the problem of reusing decommissioned lithium batteries on new energy vehicles

Method used

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  • A current control unit, power supply device and vehicle
  • A current control unit, power supply device and vehicle
  • A current control unit, power supply device and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] refer to figure 1 , figure 1 It is a schematic diagram of a circuit principle of a current control unit provided by the present invention. This embodiment provides a current control unit, including: a power supply module, a control module, a diode module, an output port and an input port, the control module is connected to the diode module, and the anode of the diode module is connected to the output terminal of the power supply module , the cathode of the diode module is connected to the output port, the input end of the power supply module is connected to the input port; the output port and the input port are used to connect a load;

[0038] The control module is used to obtain first temperature information of the diode module, and control the voltage drop of the diode module according to the first temperature information, so as to adjust the output current of the power supply module.

[0039] Wherein, a single power supply module may be a battery or a battery pack ...

Embodiment 2

[0081] refer to Figure 12 , Figure 12 It is a schematic diagram of a circuit principle of a power supply device provided by the present invention. This embodiment provides a power supply device, including M current control units in the above-mentioned embodiment 1, the output ports of each of the current control units are combined and used to connect to the first end of the load, and each of the current control units The input port of the unit is combined and used to connect the second end of the load, and M is a positive integer.

[0082] In a specific implementation, the first end of the load may be the input end of the load, and the second end of the load may be the output end of the load.

[0083] In practical applications, the physical characteristics of the power supply modules in different current control units of the same power supply device may be different. This power supply device uses the temperature and current physical characteristics of the diode to dynamica...

Embodiment 3

[0097] This embodiment provides a vehicle, including the power supply device and the load in Embodiment 2 above, where the power supply device is connected to the load. Specifically, the output port of the power supply device is connected to the input end of the load, the input port of the power supply device is connected to the output end of the load, the output ports of the M current control units in the power supply device are combined as the output port of the power supply device, and the M current control units The input port of the combined circuit is used as the input port of the power supply device.

[0098] Compared with the prior art, the present invention provides a current control unit, including a power supply module, a control module, a diode module, an output port and an input port, the control module is connected to the diode module, the anode of the diode module is connected to the output end of the power supply module, and the diode module The negative electr...

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Abstract

The present invention provides a current control unit, a power supply device and a vehicle. The current control unit includes a power supply module, a control module, a diode module, an output port and an input port. The control module is used to obtain the first temperature information of the diode module, according to the first The temperature information controls the voltage drop of the diode module to adjust the output current of the power supply module, which is beneficial to control the output current of the internal power supply module when supplying power to the load, so as to reduce the impact on the service life and the life of the power supply module due to excessive output current. Adverse effects on security. The power supply device includes M above-mentioned current control units, and the M current control units are connected in parallel to charge the load. The structure of the power supply device is simple. A single device can use power supply modules of different types and different physical characteristics, and the device can realize the output of the internal power supply module at low cost. Current balance is beneficial to improve the service life, safety and reliability of the power supply device. The vehicle includes the power supply device.

Description

technical field [0001] The invention belongs to the field of electronics, and in particular relates to a current control unit, a power supply device and a vehicle. Background technique [0002] With the continuous change of lithium battery technology, the cost of lithium batteries is gradually reduced, and its application fields are becoming more and more extensive. In the application of lithium batteries in various scenarios, parallel use is a common phenomenon. Through the parallel connection of lithium batteries, battery packs with various capacities for different applications can be designed. Under normal circumstances, there will be no problem in the parallel use of lithium battery packs of the same specification and performance, but when the parallel lithium battery packs come from different manufacturers, there are many hidden dangers in the parallel use of lithium battery packs, especially in When the lithium battery pack is discharged, the output current of differ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00B60L58/22
CPCB60L58/22H02J7/0019H02J7/00304H02J7/007192Y02T10/70
Inventor 张金磊曾炳光刘涛吴国华朱建国
Owner SHENZHEN WINLINE TECH
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